Year	Percent
2006-01-01	44.9474043194158
2007-01-01	45.0366385767275
2008-01-01	45.0900167744295
2009-01-01	44.0062759135576
2010-01-01	45.6708162326494
2011-01-01	47.7046992489898
2012-01-01	47.8607024059727
2013-01-01	48.2901404500898
2014-01-01	48.3282296452846